Ask Me Help Desk

Ask Me Help Desk (https://www.askmehelpdesk.com/forum.php)
-   Mathematics (https://www.askmehelpdesk.com/forumdisplay.php?f=199)
-   -   Statistics & Probability (https://www.askmehelpdesk.com/showthread.php?t=707966)

  • Oct 9, 2012, 05:33 PM
    vvicens
    Statistics & Probability
    For a normal population with a μ = 70 and σ = 20. What is the probability of obtaining a sample mean greater than 75:

    a. For a random sample of n = 4 scores?

    b. For a random sample of n = 16 scores?

    c. For a random sample of n = 100 scores?
  • Oct 9, 2012, 10:07 PM
    Unknown008
    Show your attempt please

    • All times are GMT -7. The time now is 01:00 AM.